custom turbo for LX450
03-22-2006, 11:28 PM
#12
0.5 BAR
Thread Starter
Join Date: Mar 2006
Posts: 50
Re: custom turbo for LX450
I think im figuring this out ....and still talking to myself...still need help...
I'm going to use 2" tube as that is what the safari uses and today i got a great deal on 10 new 2.25" ID tube couplers off ebay for only $53. that silicone hose is pricey!! I have calculated that I can build the piping with 10 180' mandrel 2.25"od bends plus a couple strait pieces. This tube will cost aprox $200.
Finding the right turbo is still a struggle as I have no experience. I have read (think im reading them right) dozens of turbo compressor maps. The good choices that I can see from the maps aremost any of the T04b series, garrett 60-1, garrett t61, 64, or 66. mitsubishi td05h-16g small, mitsubishi td06h-20g, The higher trim (57, 61) T04e series. The t3 compressors will get way inefficient at higher rpm with the 4.5l even at only 5psi-the t3 is too small. I believe the T3/T4 hybrid turbos may work for this motor-but what do I know. from what I have gathered these hybrids use the small t3 turbine (they come in sizes ranging from small to large: “stage 1” to “stage 5”) and the larger t4 compressor (called s,v,or h “trim” for t04b) and (40,46,50,54,57,and 60 trim for the t04e series). I believe the ticket may be to use a large t3 turbine which would spool easier along with a larger t4 compressor (maps show it should be 57, or 60 trim with the t04e, or any of the t04b compressors). My biggest hang up is weather to use a strait t4 or use the t3/t4 combo. So what should it be you low riding biatches?
I'm going to use 2" tube as that is what the safari uses and today i got a great deal on 10 new 2.25" ID tube couplers off ebay for only $53. that silicone hose is pricey!! I have calculated that I can build the piping with 10 180' mandrel 2.25"od bends plus a couple strait pieces. This tube will cost aprox $200.
Finding the right turbo is still a struggle as I have no experience. I have read (think im reading them right) dozens of turbo compressor maps. The good choices that I can see from the maps aremost any of the T04b series, garrett 60-1, garrett t61, 64, or 66. mitsubishi td05h-16g small, mitsubishi td06h-20g, The higher trim (57, 61) T04e series. The t3 compressors will get way inefficient at higher rpm with the 4.5l even at only 5psi-the t3 is too small. I believe the T3/T4 hybrid turbos may work for this motor-but what do I know. from what I have gathered these hybrids use the small t3 turbine (they come in sizes ranging from small to large: “stage 1” to “stage 5”) and the larger t4 compressor (called s,v,or h “trim” for t04b) and (40,46,50,54,57,and 60 trim for the t04e series). I believe the ticket may be to use a large t3 turbine which would spool easier along with a larger t4 compressor (maps show it should be 57, or 60 trim with the t04e, or any of the t04b compressors). My biggest hang up is weather to use a strait t4 or use the t3/t4 combo. So what should it be you low riding biatches?
03-23-2006, 02:01 AM
#13
3.0 BAR
Join Date: May 2005
Posts: 1,811
Re: custom turbo for LX450
1fz-fe woot.
Don't worry about the cooling lines to the turbo. Take $7 & buy some 5/16" hose, and 4 hose clamps. Remove the Throttlebody/EGR coolant lines, and route them to the turbo.
*Amazing*
Dude set a power, and powerband goal for the truck first. Then decide the turbo to get there. Don't do it half assed backwards. I suggest not grossly passing a 12:1 peak effective compression ratio. 6-7psi is ok. over 10 & you're pushing that head gasket.
Don't worry about the cooling lines to the turbo. Take $7 & buy some 5/16" hose, and 4 hose clamps. Remove the Throttlebody/EGR coolant lines, and route them to the turbo.
*Amazing*
Dude set a power, and powerband goal for the truck first. Then decide the turbo to get there. Don't do it half assed backwards. I suggest not grossly passing a 12:1 peak effective compression ratio. 6-7psi is ok. over 10 & you're pushing that head gasket.
03-23-2006, 11:08 AM
#14
0.5 BAR
Thread Starter
Join Date: Mar 2006
Posts: 50
Re: custom turbo for LX450
thanks toysrme
the throttlebody/egr collant line trick is cool--I would have never thought of that-the hoses on this motor are right there too.
I . Ill explain how I have been going about this. I know that the nl pully for the TRD supercharger (an eaton M90 without intercooling) makes about 6psi and gives the 4.5L motor about 300hp (stock is 212) and an orgy of torque. I also know that there are 3 diff turbo systems for the motor; the safari, the AVO, and a new system By Manofree (not officially out yet). The turbos make more HP at the same 6psi. I cant find anyone who knows or will tell me exactly what turbo's are used in the kits. I've heard the safari is a T04e.
I assume (incorrectly?) 6psi will make about the same HP regardless of what is making the boost. I have been reading turbo maps and looking for the most efficient (ie minimize hotness) compressors for my pressure ratio in the 2500-4000 rpm range. I am not specifically looking to accelerate quickly but would like some extra power so I can cruise comfortably at 80mph (3000 rpm) and pass people when I need to. But beyond pressure maps I don't know WTF I am doing with turbos. I would love it if I could also go well in the low RPMs but absolutely not at the expense of the 3000-4000rpm range.
the throttlebody/egr collant line trick is cool--I would have never thought of that-the hoses on this motor are right there too.
I . Ill explain how I have been going about this. I know that the nl pully for the TRD supercharger (an eaton M90 without intercooling) makes about 6psi and gives the 4.5L motor about 300hp (stock is 212) and an orgy of torque. I also know that there are 3 diff turbo systems for the motor; the safari, the AVO, and a new system By Manofree (not officially out yet). The turbos make more HP at the same 6psi. I cant find anyone who knows or will tell me exactly what turbo's are used in the kits. I've heard the safari is a T04e.
I assume (incorrectly?) 6psi will make about the same HP regardless of what is making the boost. I have been reading turbo maps and looking for the most efficient (ie minimize hotness) compressors for my pressure ratio in the 2500-4000 rpm range. I am not specifically looking to accelerate quickly but would like some extra power so I can cruise comfortably at 80mph (3000 rpm) and pass people when I need to. But beyond pressure maps I don't know WTF I am doing with turbos. I would love it if I could also go well in the low RPMs but absolutely not at the expense of the 3000-4000rpm range.
03-24-2006, 03:50 PM
#17
0.5 BAR
Thread Starter
Join Date: Mar 2006
Posts: 50
Re: custom turbo for LX450
ok so I found a turbo i may buy. it is a water/oil cooled garrett t3/t4. the guy doesn't know much about it but says its A/R ratios are .62 and .48. and it has no play. thats all he can tell me. so does that mean it is a t04e compressor with a stage 3 t3 turbine. do you think this thing can efficiently support my 4.5L motor at 6psi and 3000-4000rpms?
03-24-2006, 04:11 PM
#19
0.5 BAR
Thread Starter
Join Date: Mar 2006
Posts: 50
Re: custom turbo for LX450
http://cgi.ebay.com/ebaymotors/ws/eB...MEWA%3AIT&rd=1
Yea I guess I would be better off with purely t4. Do they make a t3/t4 using a stage 5 t3 turbine?
would that flow enough?
Yea I guess I would be better off with purely t4. Do they make a t3/t4 using a stage 5 t3 turbine?
would that flow enough?
03-24-2006, 04:15 PM
#20
3.0 BAR
Join Date: Apr 2005
Posts: 1,521
Re: custom turbo for LX450
Originally Posted by dusty
Yea I guess I would be better off with purely t4. Do they make a t3/t4 using a stage 5 t3 turbine?
would that flow enough?
would that flow enough?
